C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/70 (2006.01) C02F 1/00 (2006.01) C02F 1/58 (2006.01) C02F 1/68 (2006.01)
Patent
CA 2748671
A method for providing for the use of underground aquifers for water storage for municipalities or recharge. Water is treated and injected for storage in the aquifer by the addition of a small amount of a sulfide compound to remove dissolved oxygen and prevent dissolution of negative valence sulfur bearing minerals, such as pyrite, in the subsurface. The stored water may be subsequently withdrawn from the aquifer and treated to remove residual amounts of sulfide ions. The withdrawn water being suitable as potable water, irrigation water, industrial use water, and aquifer water level enhancement water.
La présente invention concerne un procédé permettant d'utiliser des aquifères souterrains pour stocker de l'eau à l'usage des municipalités ou pour une recharge artificielle. De l'eau est traitée et injectée dans un aquifère pour y être stockée en ajoutant une petite quantité de sulfure qui permet d'éliminer l'oxygène dissous et d'empêcher la dissolution de minéraux contenant du soufre de valence négative tels que la pyrite sous la surface. L'eau stockée peut ensuite être retirée de l'aquifère et traitée pour retirer les quantités résiduelles d'ions sulfure. L'eau retirée est appropriée comme eau potable, eau d'irrigation, eau industrielle, et pour améliorer le niveau des nappes phréatiques.
Entrix
Finlayson & Singlehurst
LandOfFree
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